//
// --------------------------------------------------------------------------
//  Gurux Ltd
// 
//
//
// Filename:        $HeadURL$
//
// Version:         $Revision$,
//                  $Date$
//                  $Author$
//
// Copyright (c) Gurux Ltd
//
//---------------------------------------------------------------------------
//
//  DESCRIPTION
//
// This file is a part of Gurux Device Framework.
//
// Gurux Device Framework is Open Source software; you can redistribute it
// and/or modify it under the terms of the GNU General Public License 
// as published by the Free Software Foundation; version 2 of the License.
// Gurux Device Framework is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of 
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
// See the GNU General Public License for more details.
//
// More information of Gurux products: https://www.gurux.org
//
// This code is licensed under the GNU General Public License v2. 
// Full text may be retrieved at http://www.gnu.org/licenses/gpl-2.0.txt
//---------------------------------------------------------------------------

package gurux.dlms.enums;

import java.util.HashSet;
import java.util.Set;

public enum MethodAccessMode3 {
	/*
	 * No access.
	 */
	NO_ACCESS(0),
	/*
	 * access.
	 */
	ACCESS(1),
	/*
	 * Authenticated request.
	 */
	AUTHENTICATED_REQUEST(4),

	/**
	 * Encrypted request.
	 */
	ENCRYPTED_REQUEST(8),

	/**
	 * Digitally signed request.
	 */
	DIGITALLY_SIGNED_REQUEST(16),

	/**
	 * Authenticated response.
	 */
	AUTHENTICATED_RESPONSE(32),

	/**
	 * Encrypted response.
	 */
	ENCRYPTED_RESPONSE(64),

	/**
	 * Digitally signed response.
	 */
	DIGITALLY_SIGNED_RESPONSE(128);

	private int intValue;
	private static java.util.HashMap<Integer, MethodAccessMode3> mappings;

	private static java.util.HashMap<Integer, MethodAccessMode3> getMappings() {
		synchronized (MethodAccessMode3.class) {
			if (mappings == null) {
				mappings = new java.util.HashMap<Integer, MethodAccessMode3>();
			}
		}
		return mappings;
	}

	MethodAccessMode3(final int value) {
		intValue = value;
		getMappings().put(value, this);
	}

	/*
	 * Get integer value for enum.
	 */
	public int getValue() {
		return intValue;
	}

	/**
	 * @return Get enumeration constant values.
	 */
	private static MethodAccessMode3[] getEnumConstants() {
		return new MethodAccessMode3[] { ACCESS, AUTHENTICATED_REQUEST, ENCRYPTED_REQUEST, DIGITALLY_SIGNED_REQUEST,
				AUTHENTICATED_RESPONSE, ENCRYPTED_RESPONSE };

	}

	/**
	 * Converts the integer value to enumerated value.
	 * 
	 * @param value The integer value, which is read from the device.
	 * @return The enumerated value, which represents the integer.
	 */
	public static java.util.Set<MethodAccessMode3> forValue(final int value) {
		Set<MethodAccessMode3> types = new HashSet<MethodAccessMode3>();
		MethodAccessMode3[] enums = getEnumConstants();
		for (int pos = 0; pos != enums.length; ++pos) {
			if ((enums[pos].intValue & value) == enums[pos].intValue) {
				types.add(enums[pos]);
			}
		}
		return types;
	}

	/**
	 * Converts the enumerated value to integer value.
	 * 
	 * @param value The enumerated value.
	 * @return The integer value.
	 */
	public static int toInteger(final Set<MethodAccessMode3> value) {
		int tmp = 0;
		if (value != null) {
			for (MethodAccessMode3 it : value) {
				tmp |= it.getValue();
			}
		}
		return tmp;
	}
}